Home / 156,055.70-215,298.60-102,370.52

Finding the Fourth Proportional to 156,055.70, 215,298.60 and 102,370.52

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Solution

The fourth proportional to 156,055.70, 215,298.60 and 102,370.52 is: 141,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,055.70 : 215,298.60 = 102,370.52 : x
  2. Step 2: Convert to fraction form
    156,055.70/215,298.60 = 102,370.52/x
  3. Step 3: Cross multiply
    156,055.70x = 215,298.60 × 102,370.52
  4. Step 4: Simplify right side
    156,055.70x = 22,040,229,637.27
  5. Step 5: Solve for x
    x = 22,040,229,637.27/156,055.70
  6. Step 6: Final answer
    x = 141,233.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.